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5305-00-121-3564

Close Tolerance Screw

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Official Item Classification

Name
Close Tolerance Screw
(NSN) National Stock Number
5305-00-121-3564
(FSG) Federal Supply Group
53 Hardware and Abrasives
(FSC) Federal Supply Classification
5305 Screws
(INC) Item Name Code
29294
(FIIG) Federal Item Identification Guide
A003B0
Date
10/23/1968 (57 years ago)

3a thread class, 1.418 inches minimum and 1.438 inches maximum fastener length, flat countersunk head style, right-hand thread direction, 0.282 inches minimum and 0.333 inches maximum thread length

Specs & Compatibility

Thread Class

3a

Thread Direction

right-hand

Thread Length

0.282 inches minimum and 0.333 inches maximum

Fastener Length

1.418 inches minimum and 1.438 inches maximum

Head Style

flat countersunk

Head Diameter

0.449 inches minimum and 0.507 inches maximum

Locking Feature

detent ball grip

Grip Diameter

0.2483 inches minimum and 0.2492 inches maximum

Shank Unthreaded Hole Diameter

0.076 inches minimum and 0.086 inches maximum first hole

Internal Drive Style

high-torque

Nominal Thread Diameter

0.250 inches

Grip Length

1.000 inches minimum and 1.016 inches maximum

Thread Quantity Per Inch

28

Hardness Rating

36.0 rockwell c minimum and 41.0 rockwell c maximum overall

Countersink Angle

100.0 degrees nominal

Distance From Head Largest Bearing Surface To Shank Hole Center

1.318 inches minimum and 1.348 inches maximum first hole

Surface Finish

63.0 microinches grip

Surface Finish

63.0 microinches top of head

Material

steel overall

Material Document And Classification

mil-b-83050 mil spec single material response overall

Surface Treatment

cadmium and chromate overall

Surface Treatment Document And Classification

qq-p-416 ty 2 cl 2 fed spec single treatment response overall

Thread Series Designator

unjf

Regulatory Compliance

Precious Metals Indicator
A

Item does not contain precious metal.

Criticality Code
X

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Hazardous Metals Indicator
N

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

Pseudo Item Name Code

0029294

Related Hardware Products

Part Number Description
106466-4-16 Close Tolerance Screw
AS195-4-16 Close Tolerance Screw
CA4520-4-16 Close Tolerance Screw
MS27577-4-16 Close Tolerance Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-00-121-3564?
The FSCG of the NSN 5305-00-121-3564 is 5305
Does the NSN 5305-00-121-3564 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-00-121-3564 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 5305-00-121-3564 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-00-121-3564 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 5305-00-121-3564 was assigned to the Federal Catalog?
It was assigned 57 years ago, on Wed, Oct 23, 1968